Evidence map›Paper›PMID 15708993›Full record

ArticleJournal of virology2005

Nonstructural protein sigma1s is a determinant of reovirus virulence and influences the kinetics and severity of apoptosis induction in the heart and central nervous system.

Cristen C Hoyt, Sarah M Richardson-Burns, Robin J Goody, Bridget A Robinson, Roberta L Debiasi, Kenneth L Tyler

Abstract read
In one paragraph

Article in Journal of virology, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
1.1field-weighted citation impact, top 24% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

23 citing papers in PubMed, 31 citations in OpenAlex.

  1. Egress of non-enveloped enteric RNA viruses.The Journal of general virology · 2021
    Review
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Reovirus receptors, cell entry, and proapoptotic signaling.Advances in experimental medicine and biology · 2013
    Review
  13. Mechanisms of reovirus bloodstream dissemination.Advances in virus research · 2013
    Review
  14. Article
  15. Article
  16. Article
  17. Reovirus nonstructural protein sigma1s is required for establishment of viremia and systemic dissemination.Proceedings of the National Academy of Sciences of the United States of America · 2009
    Article
  18. Apoptosis in animal models of virus-induced disease.Nature reviews. Microbiology · 2009
    Review
  19. Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 1 institution in 1 country.

Cristen C HoytDepartment of Neurology (B-182), University of Colorado Health Sciences Center, 4200 E. 9th Ave., Denver, CO 80262, USA.
Sarah M Richardson-Burns
Robin J Goody
Bridget A Robinson
Roberta L Debiasi
Kenneth L Tyler
Neurology, Inc · US

Funding

Mechanisms of Apoptosis in the central nervous systemR01NS050138 · NINDS · UNIVERSITY OF COLORADO DENVER · PI TYLER, KENNETH L. · 2005 to 2009
$1.3M
Mechanisms of virus-induced apoptosis in neurons and CNSR01NS051403 · NINDS · UNIVERSITY OF COLORADO DENVER · PI TYLER, KENNETH L. · 2006 to 2010
$1.2M
NINDS NIH HHS 1R01NS50138NINDS NIH HHS R01 NS050138NINDS NIH HHS R01 NS051403
6 · The paper itself

Abstract

The mechanisms by which viruses kill susceptible cells in target organs and ultimately produce disease in the infected host remain poorly understood. Dependent upon the site of inoculation and strain of virus, experimental infection of neonatal mice with reoviruses can induce fatal encephalitis or myocarditis. Reovirus-induced apoptosis is a major mechanism of tissue injury, leading to disease development in both the brain and heart. In cultured cells, differences in the capacity of reovirus strains to induce apoptosis are determined by the S1 gene segment, which also plays a major role as a determinant of viral pathogenesis in both the heart and the central nervous system (CNS) in vivo. The S1 gene is bicistronic, encoding both the viral attachment protein sigma-1 and the nonstructural protein sigma-1-small (sigma1s). Although sigma1s is dispensable for viral replication in vitro, we wished to investigate the expression of sigma1s in the infected heart and brain and its potential role in reovirus pathogenesis in vivo. Two-day-old mice were inoculated intramuscularly or intracerebrally with either sigma1s(-) or sigma1s(+) reovirus strains. While viral replication in target organs did not differ between sigma1s(-) and sigma1s(+) viral strains, virus-induced caspase-3 activation and resultant histological tissue injury in both the heart and brain were significantly reduced in sigma1s(-) reovirus-infected animals. These results demonstrate that sigma1s is a determinant of the magnitude and extent of reovirus-induced apoptosis in both the heart and CNS and thereby contributes to reovirus pathogenesis and virulence.

Indexed as

AnimalsApoptosisCentral Nervous SystemCerebral CortexHeartHippocampusKineticsMammalian orthoreovirus 3MiceMyocardiumThalamusViral Nonstructural ProteinsVirulenceVirus Replicationsigma 1NS protein, ReovirusViral Nonstructural Proteins

Identifiers

PMID15708993
PMCPMC548430
OpenAlexW2097553195

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.